ZT8101 Intel (CPU), ZT8101 Datasheet - Page 15

• Manufacturer Part Number: ZT8101
• Manufacturer: Intel (CPU)

Specifications of ZT8101

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Layer 2 Switch Features
4.1
4.1.1
4.1.2
Intel
®
Table 1.
NetStructure
This section describes the Layer 2 features that the switch supports.
Ethernet Port Configurations
Auto-Negotiation and Force Mode
By default, the switch is configured to use auto-negotiation to determine each port’s speed and
duplex setting. The user can modify this and configure a port to use a specified configuration. The
Ethernet ports have the following characteristics:
Ethernet Port Characteristics
Flow Control
All ports have a traffic limit because they have a limited buffer space to receive incoming frames.
Upon reaching the limit, a port either starts dropping packets or triggers flow control. The ZT 8101
switch uses the following methods for flow control:
The port type and duplex mode determine which type of flow control is used. The following table
lists the port types and their flow control methods.
Fast Ethernet
Gigabit Ethernet
•
•
•
TM
802.3x flow control: The switch sends PAUSE frames which request remote ports to delay
sending packets for a period of time. Sending ports suspend further frame transmission until
the specified time period has elapsed.
802.3x compliant flow control: The switch does not send PAUSE frames, but it does respond
to them.
Back pressure: The switch fakes a collision and then transmits a jam sequence to ensure all
stations are notified of the “collision.” This causes the sending ports to trigger their back-off
routines and reduces the amount of traffic on the port.
ZT 8101 10/100 Ethernet Switch Technical Product Specification
Ethernet Port
10/100 Mbps
1000 Mbps
Link Speed
Half, Full
Full
Duplex
Layer 2 Switch Features
4
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